Question

c++

You will implement a template class with the following members:

1. An array of our generic type. The size of this array should be determined by an integer argument to the constructor.
2. An integer for storing the array size.
3. A constructor capable of accepting one integer argument. The constructor should initialize the array and set the array size.
4. A method, find Max, that returns the maximum value in the array.
5. A method, find Min, that returns the minimum value in the array.

Additionally you will need to create a short driver program that demonstrates your template class working with a few different numeric data types.

Answer 1

#include <iostream>

using namespace std;

template<class T>
class Array {
private:
    T *arr;
    int size;
public:
    Array(int size) : size(size) {
        arr = new int[size];
    }

    Array(T *arr, int size) : arr(arr), size(size) {

    }

    T max() {
        T result = arr[0];
        for (int i = 0; i < size; ++i) {
            if (arr[i] > result) {
                result = arr[i];
            }
        }
        return result;
    }

    T min() {
        T result = arr[0];
        for (int i = 0; i < size; ++i) {
            if (arr[i] < result) {
                result = arr[i];
            }
        }
        return result;
    }
};

int main() {
    double d[] = {4.5, 2.9, 9.0, 1.2, 6.5};
    Array<double> doubles(d, 5);
    cout << "Maximum is " << doubles.max() << endl;
    cout << "Minimum is " << doubles.min() << endl;

    int a[] = {2, 0, 1, 6, 9, 5};
    Array<int> integers(a, 6);
    cout << "Maximum is " << integers.max() << endl;
    cout << "Minimum is " << integers.min() << endl;
    return 0;
}